import com.mysql.jdbc.jdbc2.optional.MysqlDataSource;

import javax.sql.DataSource;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

/**
 * @Question DBUtil
 * @Date 2022/10/15 12:01
 * @Solution
 */
public class DBUtil {
    private static DataSource dataSource = null;
    public static DataSource getDataSource() {
         if(dataSource==null) {
             dataSource=new MysqlDataSource();
             ((MysqlDataSource)dataSource).setURL("jdbc:mysql://127.0.0.1:3306/MessageWall?characterEncoding=utf8&useSSL=false");
             ((MysqlDataSource)dataSource).setUser("root");
             ((MysqlDataSource)dataSource).setPassword("760121");
         }
         return dataSource;
    }

    public static Connection getConnection() throws SQLException {
        return getDataSource().getConnection();
    }

    public static void close(Connection connection, PreparedStatement statement, ResultSet resultSet) {

    }
}
